Effect of a rough surface on the aerodynamic characteristics of a two-bladed wind-powered engine with cylindrical blades

Н.К. Танашева, T. O. Kunakbaev, A. N. Dyusembaeva, N. N. Shuyushbayeva, Saule Damekova

2017

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DOI 10.1134/s1063784217110299
Data confidence 70 medium
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Abstract

We have reported the results of experiments on determining the drag coefficient and the thrust coefficient of a two-bladed wind-powered engine based on the Magnus effect with rotating rough cylinders in the range of air flow velocity of 4–10 m/s (Re = 26800–90000) for a constant rotation number of a cylindrical blade about its own axis. The results show that an increase in the Reynolds number reduces the drag coefficient and the thrust coefficient. The extent of the influence of the relative roughness on the aerodynamic characteristics of the two-bladed wind-powered engine has been experimentally established.